The answer is: Jean-Jacques Rousseau
There is no following? If you could provide more information then we would be able to answer the problem.
True. This is a true statement! We have many people who have shaped our lives and the world because of their ideas! :) Hope I helped. :)
Well when scientists wish to learn something, they use the scientific method. The first step is to observe something/could be a problem. Then ask a question about it. Form a hypothesis, or a possible answer to that question. These are the first steps.
Further steps include setting up an experiment and results, etc, but I think you know the rest! Hope this helps!